HD Tune Pro
HD Tune is a Hard Disk utility which has the following functions:
- Benchmark: measures the performance
- Info: shows detailed information
- Health: checks the health status by using SMART
- Error Scan: scans the surface for errors
- Temperature display
HD Tune Pro gives us accurate read, write and access time results and for the last couple of years has been gaining popularity amongst reviewers. It is now considered a must have application for storage device testing.
One thing that advanced users are going to run into is the ability to change the stripe size, or lack thereof. HighPoint locks this setting down at 64k and calls it "chunk size". We have demonstrated before that being able to change this setting to tune your storage subsystem to your needs (either high IOPS, high sequential transfer rate or a best mix between the two), allows users to get the most out of the system. HighPoint's 64k chunk size is geared toward high IOPS, mainly with standard platter drives. I've found that SSDs work better with larger sizes and to get the best sequential rates, sizes of 1MB or higher are needed.
With that in mind, we see the HPT RocketRAID hitting average read speeds of just 405MB/s in RAID 0 and 396MB/s in RAID 5. The LSI and Adaptec controllers were also tested at their default stripe size settings. For the LSI it was also 64, but the Adaptec uses 128. The Adaptec is only able to run at SATA II speeds while the LSI and HighPoint run SATA III (6G).
Traditionally RAID 5 write speeds are an issue, especially for a drive that does not have cache or an XOR engine. Here we see the opposite is true for the RocketRAID 2760. In RAID 5 we see the drives performing better than they did with RAID 0.
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